20001432 Ver 1_Meeting Minutes_20080820

Subject:
Team Members:
Minutes from Interagency `�� Pd � t {I , w Review Meeting
on August 20 2008 for r� tPt�i +taa rY #t�°`��- .J2,tfi'h,.o
Richard Spencer -USAGE
Gary Jordan -USF WS
Travis Wilson -NCWRC
Polly Lespinasse -NCDWQ
Chris Militscher -EPA
Donnie Brew -FHWA
David Harris -REU
Cathy Houser - Roadway
Betsy Cox, Structures
Jay Mclnnis -PDEA
Rachelle Beauregard -NEU
John Olinger - Division 8
(absent)
(present)
(absent)
(present)
(present)
(present)
(absent)
(absent)
(absent)
(absent)
(present)
(present)
Participants:
Marshall Clawson, NCDQT Hydraulics
Herb Turner, Ko & Associates
Robert Stroup, NCDQT Roadway
Clayton Walston, NCDQT Roadway
Karen McCauley, NCDDT Roadway
Theo Beach, NCDQT Structure Design
Mark Staley, NCDQT — REU
Jennifer Parish, NCDQT — REU
Greg Price, NCDQT - NEU
1. The 4B Hydraulic Design Review Meeting was held on June 15, 2005 for R- 2417AA.
2. A general comment was made to update decimal accuracy to the hundredth for area
impacts shown on the Wetland Permit Impact Summary.
3. On Title Sheet and Plan Sheets, increase font size for site labels.
4. Per NEU, the jurisdictional determinations for the wetlands were updated approximately
two years ago. The jurisdictional determinations for the streams are currently being
updated. Modification to four of the previous determinations is proposed. NEU
anticipates completing these updates to the jurisdictional determination within a month
from this meeting.
5. The project limits for R- 2417AA will be extended to include grading repairs and final
paving for the US 1 -15 -501 interchange (R- 2417AB), east of the current project limits.
Based on the Division's comments, there is at least one jurisdictional stream along Ramp
B which may be impacted. NEU will provide jurisdictional determinations for this area.
Any impacted sites will be incorporated into this permit package.
Title Sheet Mx17):
Revise title sheet to indicate "Wetland & Stream Impacts ".
Sheet 5:
SITE 1 (Sta 22 +30 to 26 +80 LT): NEU requested that the impacts for the two wetland
pockets be labeled as Site 1 to be consistent with the Wetland Permit Impact Summary.

R- 2417AA: 4C Permit Drawing Review Meeting
August 20, 2008
Page 2 of 3
Sheet 6A:
SITE 2:
a) Remove and add note for "additional wetland impacts due to drawdown" to Wetland
Permit Impact Summary sheet.
b) Station 33 +65 RT (South side of 421): The UT to Patterson Creek is perennial on south
side of 421. Therefore, label intermittent and perennial stream sections as Site 2A and
Site 213, respectively. Update Wetland Permit Impact Summary.
c) Station 33 +65 RT: Verify or modify proposed alignment for smooth transition to existing
channel.
d) Sta 33 +25 RT: Remove fill shading from existing 15" CMP to UT. That part is non -
jurisdictional.
SITE 3 (Sta 35 +20 RT): Impacts are for wetland, only. Remove leader to SITE 2.
Sheet 6B:
SITE 4 (Sta 52 +08): There are no impacts from the proposed Dual, Single -Span Bridges.
Add surface water impacts as a result of the riprap on embankments for the two system
outfalls along Big Buffalo Creek.
Sheet 9:
SITE 5 (Sta 87 +90): There was discussion stormwater treatment prior to tying to the 54"
crosspipe. Marshall clarified that the roadway runoff is treated via grassed swales prior to
entering the drainage system.
Sheet 12:
SITE 6: Per NEU, the jurisdictional determinations are being updated.
a) Sta 120 +20: UT2 to Big Buffalo Creek (smaller one) is non jurisdictional. Remove
impact hatching.
b) Sta 120 +57: The larger stream (UT3 to Big Buffalo Creek) is intermittent and should not
require mitigation.
c) Station 120 +20 RT: Verify or modify proposed alignment from overflow channel for
smooth transition to existing channel.
Sheet 14:
SITE 7 (Sta 142 +67): Per NEU, the jurisdictional determination is being updated.
a) The stream (UT4 to Big Buffalo Creek) scored as ephemeral (non jurisdictional) instead
of intermittent. Site may be eliminated.

R- 2417AA: 4C Permit Drawing Review Meeting
August 20, 2008
Page 3 of 3
b) There was discussion regarding the lateral ditch ties to the inlet channel. No riprap is
recommended for these tie locations.
Sheet 14 -15:
SITE 8 (Sta 153 +50 — 160 +00):
a) Culvert through wetland is a 54" RCP with inverts buried 1 -foot. This culvert has a
drainage area of 84.2 acres and is placed in the existing channel (3' base by 1' depth).
b) On summary sheet, provide additional area for "Total Take" of wetland left of center (Sta
153 +50 — 154 +50 LT).
c) Add 54" RCP for structure size on Wetland Permit Impact Summary sheet.
d) No jurisdictional stream has been determined. NEU will confirm during their field visit.
Sheet 16:
SITE 9 (Sta 177 +29 RT): Within the TDE, add mechanized clearing of wetlands right of
center for the construction of box culvert.
Sheet 18:
SITE 10 (Sta 194 +60 to 196 +10): It was stated to follow NCDOT's pond drawdown
guidelines during construction to minimize downstream channel erosion.
The meeting was adjourned